/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

function toHex (char = '') {
  return char.charCodeAt(0).toString(16)
}

function encode (str = '') {
  return str.split('').map(toHex).join('')
}

function decode (hex = '') {
  const result = []
  for (let i = 0; i < hex.length; i += 2) {
    result.push(String.fromCharCode(parseInt(hex.substr(i, 2), 16)))
  }
  return result.join('')
}

export {encode, decode}